Study On P-Y Curves Of Laterally Loaded Piles Under Static Loading

Pile foundation is a widely used foundation to resist compression, tension and bending. In the recent years, along with the construction of breasting dolphin, people put more and more attention to the interactional relation between laterally loaded piles and soil. But there is no domestic criterion about calculational methods of breasting dolphin. Comprehensive understanding about the interactional relation between laterally loaded piles and soil in large displacement, finding a reasonable calculational method is imperative under the situation.P-Y curves can be used in designing laterally loaded piles in large displacement. Parameter CM and are required in P-Y method of relationalcriterion in China,America and Japan or other country. To obtain the two parameters, triaxial compression test is needed and it will cost a lot of money. Due to this reason, P-Y method isn't applied so widely. This issue bases on domestic testing data of piles , deduces a new P ?Y curves with a set of easily gained parameters such as c,ar etc.. Predictions of the pile-soil response using the proposed curves were conducted and results indicated reasonable agreement between predicted and measured field behavior.